Maui Jim Sunglasses, style Maui Cat III is a lightweight & sporty rectangular Rx-able nylon frame with built in nose pads and spring hinges for complete comfort. The Maui Cat III can be worn in salt water with their corrosion-proof nickel/silver alloy hinges. Featured on the right lens and on the temples is the Maui Jim logo. Maui Jim Sunglasses have scratch/impact resistant lightweight polarized lenses that provide superb optical clarity.